Nour Emad Thamer Alwan. "The Effect of Educational Units According to Kampsch Model on Teaching Volleyball Receiving Skills to Fifth-Grade Primary School Students". مجلة علوم الرياضة 17, no. 66 (ديسمبر 1, 2025): 203–216. تاريخ الوصول مارس 4, 2026. https://pessj.uodiyala.edu.iq/index.php/1/article/view/2088.